Results 91 to 100 of about 416,653 (194)

First neutron spectroscopy measurements in the ASDEX Upgrade tokamak [PDF]

, 2011
: A compact neutron spectrometer based on the liquid scintil-lator BC501A has been installed on the ASDEX Upgrade tokamak. The aim is to measure neutron energy distribution functions as footprints of fast ions distribution functions, generated mainly via
Gagnon-Moisan, F., Zimbal, A., H. Schuhmacher, Neu, R., Schuhmacher, H., Tardini, G., A. Zimbal, ASDEX Upgrade Team, B. Esposito, The Asdex Upgrade Team, G. Tardini, F. Gagnon-moisan, D. Marocco, Esposito, B., Marocco, D., R. Neu   +15 more
core   +1 more source

Review on ASDEX Upgrade operation with tungsten plasma facing components

Nuclear Materials and Energy
With the decision of ITER to start its operation with tungsten as plasma facing material also for the main chamber plasma facing components, the interest in the consequences of the use of W was strongly increased. Although many investigations had already
R. Neu, C. Angioni, V. Bobkov, R. Dux, J. Hobirk, A. Kallenbach, K. Krieger, T. Pütterich, V. Rohde, K. Schmid   +9 more
doaj   +1 more source

The ASDEX Upgrade UTDC and DIO cards - A family of PCI/cPCI devices for real-time DAQ under Solaris [PDF]

, 2005
A Universal Time to Digital Converter (UTDC) and a Digital I/O (DIO) card have been built to purpose for the new ASDEX Upgrade control system, the Thomson Scattering diagnostic, a renovation of the Magnetic Measurement, and a couple of other diagnostics ...
Lohs, A., G. Raupp, Behler, K. ; https://orcid.org/, K. Lüddecke, Behler, K., Raupp, G., A. Lohs, K. Behler, Lüddecke, K., ASDEX Upgrade Team   +9 more
core   +1 more source

Characterization of 3-strap antennas in ASDEX Upgrade

EPJ Web of Conferences, 2017
The response of the local RF current measured at limiters of 3-strap ICRF antenna to variations of power balance and phasing at fICRF=30MHz agrees qualitatively well with EM calculations by TOPICA and RAPLICASOL codes. Measurements of tungsten sputtering
Bobkov Volodymyr, Bilato Roberto, Colas Laurent, Dux Ralph, Faudot Eric, Faugel Helmut, Fünfgelder Helmut, Herrmann Albrecht, Jacquot Jonathan, Kallenbach Arne, Milanesio Daniele, Maggiora Riccardo, Neu Rudolf, Noterdaeme Jean-Marie, Ochoukov Roman, Pütterich Thomas, Tierens Wouter, Zhang Wei   +17 more
doaj   +1 more source

Fast-ion D-alpha measurements at ASDEX Upgrade [PDF]

, 2011
A fast-ion D-alpha (FIDA) diagnostic has been developed for the fully tungsten coated ASDEX Upgrade (AUG) tokamak using 25 toroidally viewing lines of sight and featuring a temporal resolution of 10 ms.
R Fischer, McDermott, R., Heidbrink, W., Dux, R., Tardini, G, R Dux, G Tardini, V Igochine, Tardini, G., Fischer, R, Team, the ASDEX Upgrade, B Geiger, Geiger, B, Fischer, R., Geiger, B., Dux, R, Garcia-Munoz, M, McDermott, RM, Heidbrink, W. W., Garcia-Munoz, M., Igochine, V., W W Heidbrink, McDermott, R. M., Igochine, V, ASDEX Upgrade Team, Heidbrink, WW, null null, R M McDermott, M Garcia-Munoz   +28 more
core   +1 more source

The quasi-continuous exhaust regime in JET

Nuclear Fusion
The quasi-continuous exhaust (QCE) regime is a regime that is naturally type-I ELM-free. It combines the high density at the plasma edge needed for power exhaust with the high normalised energy confinement typical for H-mode operation.
M. Faitsch, M. Dunne, E. Lerche, P. Lomas, I. Balboa, P. Bilkova, P. Bohm, A. Kappatou, D. Kos, B. Labit, S. Menmuir, O. Sauter, S. Silburn, E.R. Solano, H.J. Sun, A. Tookey, E. Viezzer, U. Stroth, JET Contributors, the EUROfusion Tokamak Exploitation Team   +19 more
doaj   +1 more source

Extension of electron cyclotron heating at ASDEX Upgrade with respect to high density operation

EPJ Web of Conferences, 2017
The ASDEX Upgrade electron cyclotron resonance heating operates at 105 GHz and 140 GHz with flexible launching geometry and polarization. In 2016 four Gyrotrons with 10 sec pulse length and output power close to 1 MW per unit were available.
Schubert Martin, Stober Jörg, Herrmann Albrecht, Kasparek Walter, Leuterer Fritz, Monaco Francesco, Petzold Bernhard, Plaum Burkhard, Vorbrugg Stefan, Wagner Dietmar, Zohm Hartmut   +10 more
doaj   +1 more source

Extrapolation of ASDEX Upgrade H-mode discharges to ITER [PDF]

, 2009
In this paper we discuss a procedure to evaluate the fusion performance of ASDEX Upgrade discharges scaled up to ITER. The kinetic profile shape is taken from the measured profiles. Multiplication factors are used to obtain a fixed Greenwald fraction and
Peeters, A., Horton, L., Sips, A. C. C., HASH(0x55a67f4a5508), Peeters, A. G., Kardaun, O., Tardini, G., Pereverzev, G. V., Sips, A., Kardaun, O. J. W. F., Pereverzev, G., Stober, J., Maggi, C.   +12 more
core   +1 more source

Chemically assisted physical sputtering of Tungsten: Identification via the 6Π→6Σ+ transition of WD in TEXTOR and ASDEX Upgrade plasmas

Nuclear Materials and Energy, 2019
Tungsten (W) is a preferred plasma-facing material for areas of high particle and power impact in present day and future fusion devices. The lifetime of W plasma-facing components (PFCs) under steady-state conditions is limited by erosion processes ...
S. Brezinsek, A. Pospieszczyk, G. Sergienko, R. Dux, M. Cavedon, M. Faitsch, K. Krieger   +6 more
doaj   +1 more source

Turbulence driven widening of the near-SOL power width in ASDEX Upgrade H-Mode discharges

Nuclear Fusion, 2020
Divertor heat flux data from infra red (IR) from various tokamaks in H-Mode regime show that the power width, λq, scales approximately like 1.6 (R/a) ρs,pol.
T. Eich, P. Manz, Robert James Goldston, P. Hennequin, P. David, M. Faitsch, B. Kurzan, B. Sieglin, E. Wolfrum   +8 more
semanticscholar   +1 more source